, everyone, i'm tamron hall, the republicans unprecedented filibuster for chuck hagel's unprecedent nomination. . >> the filibuster is unprecedent. i repeat not a single nominee for secretary of defense ever in the history of our country has been filibustered. never, ever. >> senator reid needs five republican senators to join in tomorrow's vote or else the nomination will be in limbo. speaking from air force one, press secretary josh ernest. said, quote, these fill -- according to the senator historian's office, only two cabinet appointments have ever been filibustered. no appointment has ever been successfully filibustered. john harwood, as we understand it, john, the white house still feels confident that chuck hagel will be confirmed but they also believe this tactic may work against the republicans later on. >> well, it's an interesting test, tamron, because, you know, the white house has adopted a posture of trying to call the republican's bluff on issue after kwusissue. the white house is counting on it working in the case of chuck hagel. the white house has been calling out